I'm a relatively new pipe smoker, so take what I have to say with a grain of salt, but here's what I've learned.
The first week or so of smoking my pipe I was burning the crap out of my tongue. I learned to slow down and keep my pipe just barely lit, or so I thought, and then I tasted absolutely nothing. I really think its about three things.
1. Find the right cadence for YOU
2. Let the smoke (which, by now should be cool and dry) swirl in your mouth just a while to let it hit all the taste buds (the time will vary between people)
3. Breath smoke. The flavour difference it makes is enormous
I smoke very mild blends like 1Q, or Lane BCA and get a lot of taste, but I'm starting to experiment with stronger blends. They definitely need a different cadence and time in your mouth to extract the flavours without being overpowering to the palette.
Hope this helps.